Sinha Amit sold ~$46M in Zscaler, Inc. stock
Zscaler, Inc. (ZS) · President of R&D and CTO · Data via SEC EDGAR Form 4
Price Performance · 10 days before → 90 days after trade
▲ = insider buy date
90-day return
+2.7%vs SPY +6.0%
Trade Details · Public SEC Filing
Insider
Sinha Amit
Role
President of R&D and CTO
Transaction
Open-Market Sale
Approx. Value
~$46M
Trade Date
Dec 9, 2020
Company
Zscaler, Inc.
Ticker
ZSSource
SEC EDGAR Form 4
Why This Trade Stands Out
Strong conviction signal
Scored above average across multiple factors. Roughly 15% of insider trades qualify as Strong.
~$46M sale
Trades over $1M are rare. When insiders put this much of their own money on the line, they tend to have high conviction in their company's direction.
President of R&D and CTO
Corporate insiders must file trades with the SEC within 2 business days. Their unique access to non-public information makes these filings valuable data points.
5 insiders traded in the same window
When multiple insiders independently buy within 30 days, it's called a cluster. Studies show clustered insider purchases outperform solo trades significantly, because several people with inside knowledge are reaching the same conclusion.
+2.7% in 90 days (S&P 500: +6.0%)
This trade underperformed the S&P 500 by 3.3 percentage points. Not every insider trade wins. We track all of them so you can focus on the insiders with the best records.
How good is Sinha Amit at picking stocks?
Full track record: win rate, average return, and performance vs S&P 500
Sinha Amit wasn't the only one selling.
5 insiders at Zscaler, Inc. traded within the same 30-day window.
See who else bought · FreeOn December 9, 2020, Sinha Amit — President of R&D and CTO of Zscaler, Inc. — filed a Form 4 with the SEC disclosing an open-market sale of approximately ~$46M in Zscaler, Inc. (ZS) stock.
This transaction was part of a cluster — 5 insiders at Zscaler, Inc. made open-market sales within the same 30-day window. Cluster activity from multiple independent insiders is one of the most studied patterns in insider trading research.
Under Section 16(a) of the Securities Exchange Act of 1934, corporate insiders must report all open-market stock transactions to the SEC within two business days. These filings — known as Form 4s — are publicly available on the SEC's EDGAR database. VeritySignals filters and scores the full Form 4 stream to surface high-conviction signals like this one.
In the 90 days following this trade, ZS returned +2.7% versus +6.0% for the S&P 500 over the same period.
VeritySignals Conviction Analysis
Full Conviction Analysis
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All data sourced from publicly available SEC Form 4 filings via EDGAR · Not financial advice · Past performance does not guarantee future results.
At a Glance
More ZS Insider Activity
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Rich Michael J.
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How to Read Insider Trades
What is this?
When company executives buy or sell their own stock, they must report it to the SEC within 2 days. These public filings reveal what the people who know the company best are doing with their own money.
Why does it matter?
Insiders can sell for many reasons (taxes, diversification, expenses), but they generally only buy for one: they think the stock is going up. That's why insider purchases are more predictive than sales.
What makes a trade "strong"?
We score trades on 15+ factors: the insider's role (CEO > director), trade size relative to their salary, whether other insiders also bought (clusters), and historical accuracy of the insider.
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